Getty Brad Stevens, Boston Celtics The Boston Celtics had enough reasons to believe their season should have lasted longer. They won 56 games, got Jayson Tatum back from a ruptured Achilles tendon, and carried a 3-1 series lead over the Philadelphia 76ers . None of it was enough. Philadelphia got stronger as the series went on, and Boston found itself eliminated at home in Game 7 for the second time in three years. Days later, Brad Stevens sat down in front of the media and did not look for